B03B 9/005
General arrangement of separating plant: specially adapted for coal
Official title: {specially adapted for coal}
B03B9/005 (General arrangement of separating plant: specially adapted for coal) appears on 245 US grants and 73 published applications in this corpus.
Search patents in B03B- Granted patents
- 245
- Published applications
- 73
- Assignees
- 120
- Inventors
- 391
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 9 | 0 |
| 1980 | 7 | 0 |
| 1981 | 20 | 0 |
| 1982 | 22 | 0 |
| 1983 | 20 | 0 |
| 1984 | 16 | 0 |
| 1985 | 12 | 0 |
| 1986 | 15 | 0 |
| 1987 | 4 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 9 |
| 2004 | 6 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 4 |
| 2012 | 0 | 1 |
| 2013 | 4 | 4 |
| 2014 | 2 | 1 |
| 2015 | 2 | 1 |
| 2016 | 2 | 3 |
| 2017 | 3 | 5 |
| 2018 | 0 | 2 |
| 2019 | 3 | 4 |
| 2020 | 2 | 3 |
| 2021 | 2 | 8 |
| 2022 | 7 | 9 |
| 2023 | 4 | 1 |
| 2024 | 3 | 4 |
| 2025 | 4 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and apparatus for recovering rare earth elements from coal refuse25 Nov 2025US 12,480,182 B2
- Method of forming graphene quantum dots from coal7 Oct 2025US 12,434,250 B2Energy & Environmental Research Center
- Method for upgrading coal slime through synergistic dehydration30 Sep 2025US 12,428,606 B2China University of Mining and Technology
- Process and apparatus for separating various elements such as cesium from refuse1 Jul 2025US 12,343,735 B2
- Wide-size-fraction flotation system and process15 Oct 2024US 12,115,539 B2China University of Mining and Technology
- Method of forming graphene quantum dots from coal1 Jan 2026US 2026/0001086 A1Energy & Environmental Research Center Foundation
- Process and apparatus for recovering rare earth elements from coal refuse28 Aug 2025US 2025/0270675 A1
- Fuel oil / particulate material slurry compositions and processes31 Jul 2025US 2025/0243420 A1Arq IP Limited
- Method for upgrading coal slime through synergistic dehydration29 May 2025US 2025/0171701 A1China University of Mining and Technology
- Upgraded coal15 Aug 2024US 2024/0269689 A1Energy & Environmental Research Center Foundation
Most cited
By later US patents
- Method for simultaneous use of a single additive for coal flotation, dewatering, and reconstitution88US 5,379,902 AThe United States of America as represented by the United States Department of Energy · 1995
- Process for reducing sulfur emissions with calcium-containing sorbents75US 5,368,617 AGenesis Research Corporation · 1994
- Process for removal of sulfur and ash from coal67US 4,272,250 AAtlantic Richfield Company · 1981
- Method for beneficiating by carbonaceous refuse56US 4,887,722 A1989
- Process and apparatus for preparing feedstock for a coal gasification plant53US 6,015,104 A2000